The Backtest That Lied to You
AI can find a perfect strategy in historical data in minutes. That is exactly the problem. A look at overfitting and how to test honestly.
2 min readAI can find a perfect strategy in historical data in minutes. That is exactly the problem. A look at overfitting and how to test honestly.
2 min readMost AI trading strategies are trained on one kind of market and quietly deployed into another. Regime awareness is the missing layer that tells a model when to trust itself and when to sit down.
2 min readEvery trading agent dashboard shows win rate, Sharpe, drawdown. Almost none show abstention rate — the share of opportunities the agent looked at and declined. That omission is not an oversight. It is a design flaw.
2 min readAn AI trading agent can search a million variations of a strategy in an afternoon. That is exactly the problem. When the search is cheap, the beautiful equity curve stops being evidence and starts being an accident you paid for.
9 min readBefore you commit to a big call, spend five minutes imagining it already failed and writing down why. It surfaces the risk you were quietly ignoring.
2 min readMost AI trading setups obsess over better predictions. The setups that survive obsess over what happens when the prediction is wrong.
2 min read